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- W. NURSE.

GAR BRAKE.

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UNITED STATES PATENT OEEICE.

WILLIAM NURSE, OF TORONTO, ONTARIO, CANADA.

CAR-BRAKE.

SPECIFICATION forming part .of Letters Patent No. 260,116, dated' June27, 1882.

Application filed February 18, 1882.

To all whom it may concern: Be it known that I, WILLIAM NURSE, a subjectofthe Queen of Great Britain, residing at the city of Toronto, in thecounty of York, in the province of Ontario, Canada, printer, haveinvented certain new and useful Improvements in Railway-Gar Brakes, ofwhich the following is a specification. Y

The object ofthe invention is to provide an appliance for operating thebrakes of railwaycars which can be readily and cheaply applied to carsprovided'with brakes of ordinary construction, and by -which all thebrakes in a train of cars may be applied simultaneously from any pointin the train; and it consists in the peculiar construction, arrangement,and combination of parts, as hereinafter more fully set forth andclaimed.`

Figure l is a bottom view of a car, showin g the trucks in position andthe rod connected to the brakes. Fig. 2 is a sectional elevation ofthesame. Fig. 3 is an enlarged detail, showing the universaljoint andsleeve connection for the ends of the bar. Fig. 4 is a detail of thespring applied to the brake-chain for the purpose of preventing tooAgreat a strain being exerted on the brake.

In the drawings, like letters indicate corre-A sponding parts in eachfigure.

A is a metal rod or bar supported by suitable brackets on the bottom ot'the car-frame B.

C are the brakes, arranged in connection with the wheel D in theordinary way.

E is a chain connected to the brake-lever F. This chain extends from thebrake-lever to the bottom of the truckbolster, where it passes around asheave-pulley, G, thencejextending back toward the center of the car,where it passes around another sheave-pulley, H, pivoted on the bottomof the center car-timber, thence passing to the rod A, to which it issecured. i

Between the sheave-pulleys Gr and H, I place the spring device I. 4Thisspring is specially designed and adapted for its particular purpose, andconsists of a cage, a, designed to hold a spiral spring, as indicated.One end of this cage is connected to the brake-chain E. Its other endhas a base-plate, designed vto hold the spiral spring d, and anadjustable (No model.)

plate, e, is held in the cage a, as shown, and

presses against the other end of the spiralV spring d. Through thisadjustable plate and through the center of the spiral spring and alsothe center of the plate b a spindle, f, is passed. This spindle isattached at one end to the plate e and at the other end to the chain E,extending toward the sheave-pulley H.

lt will be seen that when any strain is eX- erted on the chain E thespiral spring d is pressed between its plates, and by thus receiving thepressure on the chain is greatly rclieved, and the brakes are notapplied with the same force as they would be were this springarrangement not interposed.

Owing to the connection described between the brakes and rod A it willbe seen that the rod A, when caused to revolve, the chain E being woundupon it, will impart the desired strain on the brakes; and in this waythe brakes are readily applied by the simple revolution -of the rod A,which motion may be imparted to the said rod either by a hand-wheelconnected to the rod by. suitable gearing or a motor power driven bycompressed air may be arranged to convey the desired movement.

While each car may be arrangedl to have its brakes appliedindependently, it will of course be understood that the principal objectof my invention is to provide means by which all the brakes in theentire train may be simultaneously and readily put on. In order tosecure thisdesired end, it is of course necessary to provide means forconnecting the rod of one car to a similar rod carried on the next, andat the same time to have the connection of such a character that it canbe connected when the cars are of different heights, and also permit themovement to and from each other of the cars so connected. With that viewI provide my combined universal-joint and sleeve connection exhibited indetail in Fig. 3.

A square bar, g, is connected to the rod A by the universal joint h.This joint permits the free vertical or lateral movement of the bar,while forming a perfectly sti joint for conveying the rotary movement ofthe bar g to the rod A.

i is a sleeve having its interior hollowed out in the form shown in thedrawings. This form IOO is designed to permit the bar g, which titswithin the sleeve, to accommodate itselfto any angle at which it may beset owing to the ditt'erent heights of the two cars coupled together. Italso permits the longitudinal movement ot' the sleeve upon the bar,butit will not permit the sleeve to revolve without conveying the samemovement to the bar. The other end of the sleeve has a socket, t",designed to receive the end of the rod A attached to the other car. Thisend ot' the rod fits into the socket i', and is secured there by the pinj.

When the cars are uncoupled the pinj may be withdrawn and the sleevepushed up over the end of the har A, so as not to project beyoud the endof the car. The bar g being connected to the other end of the bar A bythe universal joint, as described, it will naturally drop down, asindicated on the right-hand side of Fig. 2, and is also arranged so thatit will not protrude beyond the end of the car, while it can easily heraised when the cars are to be coupled together.

In Fig. l I have shown two rods arranged on the car, but it is notintended that the two should always be used, the object of two being toenable the car to be reversible.

I have not shown any motor for imparting the desired movement to the rodA, as there are various motors which may satisfactorily answer thepurpose, and their application forms no feature in my present invention.

I am aware that it is not new with me to provide rotating bars withuniversal connections for applying the brakes to all of a series ofcars, and such device is not sought to be broadly covered in thisapplication.

VVbat I claim as my invention is l. In a railwaycar, a brake mechanismadapted to operate simultaneously all the brakes ofthe series of a trainof cars, the horizontal rod A, chain E, and brake-levers, com bined withthe cushioning device I, composed of the spring d, set within the cagea, having a fixed base-plate, b, and a movable plate, e, and with thespindle j', all operating as and for the purposes specified.

2. In railway-car brakes, substantially as described, the rod A, chainE, and cushioning device I, combined with the bar g, connected by jointla to the rod A ot' one car, the sleeve i, having daring interior andsocket i', the said socket adapted to receive the end of the rod A ot'the adjacent car, and the securing means j, all operating as and for thepurpose set forth.

WM'. NURSE.

Witnesses:

LEWIS ToMLINsoN, F. B. FETHERSTONHAUGH.

